Anything but run of the mill - Mexico is a country of contradictions and extremes, fascinating its visitors with over 9000 kilometres of coastline, snow-capped volcanoes rising over 5000 metres, the metropolis Mexico City, with 25 million inhabitants, and, above all, an immense wealth of ancient cultural treasures. And the underwater world also has a great deal to offer. Classical Mayan culture and Caribbean beach life are side by side on the Yucatán peninsula. This is the site of the famous Mayan ruins Chichén Itzá with its pyramid Kukulkán.